@article{ref1,
title="Symptom dimensional approach and BDNF in unmedicated obsessive-compulsive patients: an exploratory study",
journal="CNS spectrums",
year="2011",
author="dos Santos, Igor Marcanti and Ciulla, Leandro and Braga, Daniela and Ceresér, Keila Maria and Gama, Clarissa Severino and Kapczinski, Flavio and Ferrão, Ygor Arzeno",
volume="16",
number="9",
pages="179-189",
abstract="UNLABELLED: IntroductionThe dimensional approach of the obsessive-compulsive symptoms may help to find more homogeneous groups of patients. The brain derived neurotrophic factor (BDNF) may help to identify neurobiological differences between obsessive-compulsive symptom dimensions. <br><br>METHODS: We compared serum BDNF (pg/μg) levels of 25 unmedicated patients meeting Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria for obsessivecompulsive disorder (OCD) and 25 controls, using the Dimensional Yale-Brown Obsessive-Compulsive Scale, the Yale-Brown Obsessive-Compulsive Scale and the Beck's Anxiety and Depression Inventories. <br><br>RESULTS: There were no sociodemographic differences between the groups. The standard error of mean serum BDNF levels were reduced in unmedicated OCD patients (0.47+0.038) when compared to healthy controls (0.75+0.060) (P<.001). The patients with the presence of sex/religion obsessive-compulsive symptoms (OCS) dimension (P=.002), with chronic course of OCS (P=.022) and the presence of lifetime major depression (P=.016) and social anxiety (P=.030) presented higher levels of BDNF than OCD patients without those features. The severity of aggression (P=.039) and sex/religion (P<.001) OCS dimension presented direct (moderate and strong, respectively) correlation with serum BDNF levels in this sample. Serum BDNF levels were decreased in OCD patients when compared to healthy controls.<br><br>DISCUSSION/ConclusionSexual and religious content of symptoms and aggression and sex/religion dimensions severity should be better explored, since these specific OCS dimensions could be based on neurocircuits diverse from those of the other OCS dimensions.<p /><p>Language: en</p>",
language="en",
issn="1092-8529",
doi="10.1017/S1092852912000363",
url="http://dx.doi.org/10.1017/S1092852912000363"
}